Demodulation reference signaling for mini-slots

Abstract

There is disclosed a method of operating a radio node in a radio access network. The method includes transmitting and/or receiving reference signaling in a mini-slot, the timing of the reference signaling being determined based on a structure configuration of a transmission timing structure relative to which the mini-slot is positioned. The disclosure also pertains to related devices and methods.

The invention claimed is: 
     
       1. A method of operating a radio node in a radio access network, the method comprising at least one of transmitting and receiving reference signaling in a mini-slot, the timing of the reference signaling being determined based on a structure configuration of a transmission timing structure relative to which the mini-slot is positioned, the structure configuration indicating the timing of structure reference signaling, the structure reference signaling indicating the reference signaling, the transmission timing structure including at least a slot. 
     
     
       2. The method according to  claim 1 , wherein the reference signaling is at least one of demodulation reference signaling and UE-specific reference signaling. 
     
     
       3. The method according to  claim 1 , wherein the mini-slot is transmitted in one of a downlink and uplink and a sidelink. 
     
     
       4. The method according to  claim 1 , wherein the timing of reference signaling coincides with indicated timing of structure reference signaling. 
     
     
       5. The method according to  claim 1 , wherein the reference signaling in the mini-slot is multiplexed with structure reference signaling. 
     
     
       6. The method according to  claim 1 , wherein the reference signaling is associated to signaling on a physical channel in the mini-slot. 
     
     
       7. The method according to  claim 1 , wherein a transmission parameter of the reference signaling is determined based on the structure configuration. 
     
     
       8. The method according to  claim 1 , wherein the mini-slot is scheduled for transmission having a position in time relative to the transmission timing structure. 
     
     
       9. The method according to  claim 1 , wherein the transmission timing structure defines a timing grid. 
     
     
       10. The method according to  claim 1 , wherein a timing structure for at least one of the mini-slot and the transmission timing structure is based on a symbol time length, the symbol time length depending on a numerology. 
     
     
       11. The method according to  claim 2 , wherein the demodulation reference signaling is DM-RS signaling. 
     
     
       12. A radio node for a radio access network, the radio node comprising processing circuitry configured to cause the radio node to at least one of transmit and receive reference signaling in a mini-slot, the timing of the reference signaling being determined based on a structure configuration of a transmission timing structure relative to which the mini-slot is positioned, the structure configuration indicating the timing of structure reference signaling, the structure reference signaling indicating the reference signaling, the transmission timing structure including at least a slot. 
     
     
       13. The radio node according to  claim 12 , wherein the reference signaling is at least one of demodulation reference signaling and UE-specific reference signaling. 
     
     
       14. The radio node according to  claim 13 , wherein the demodulation reference signaling is DM-RS signaling. 
     
     
       15. The radio node according to  claim 12 , wherein the mini-slot is transmitted in one of a downlink, and uplink and a sidelink. 
     
     
       16. The radio node according to  claim 12 , wherein the timing of reference signaling coincides with indicated timing of structure reference signaling. 
     
     
       17. The radio node according to  claim 12 , wherein the reference signaling in the mini-slot is multiplexed with structure reference signaling. 
     
     
       18. A non-transitory computer storage medium storing an executable computer program comprising instructions that when executed, cause processing circuitry to at least one of control and perform a method of operating a radio node in a radio access network, the method comprising at least one of transmitting and receiving reference signaling in a mini-slot, the timing of the reference signaling being determined based on a structure configuration of a transmission timing structure relative to which the mini-slot is positioned, the structure configuration indicating the timing of structure reference signaling, the structure reference signaling indicating the reference signaling, the transmission timing structure including at least a slot.